Business screen magazine (1938)

COMMERCIAL METAL PRODUCTS CO. Designers and Buildeis ot: BUSINESS & EDUCATIONAL FILM DEPARTMENT EQUIPMENT & ACCESSORIES FOR EDITING. STORAGE & SHIPMENT • FILM STORAGE & HANDLING CABINETS, BENCHES & TABLES Designed and Built to your Speciiications • METAL SHIPPING CONTAINERS Cut Shipping Costs! Light-weight Metal Cases oi Extra Sturdy, Double-Strength Construction COMPCO PICA REEL FILM CASES Solve the Small Film Library Storage Problem — Featuring the Individual Film Selector PORTABLE PROJECTOR STANDS Made for Easy Handling and Steady Performance YOUB EXACT NEEDS STUDIED & ESTIMATED BY METAL SPECIALISTS WITHOUT OBLIGATION "^ ~ PHONE ARMITAGE 1123 COMMERCIAL METAL PRODUCTS CO. 225I-226I W. ST. PAUL AVENUE CHICAGO REJUVENATION of FILM 77i<" Kpcono I'roit'ss Dpsrribed • \ photograpliic film contains colloidal systems which tend to change as the film ages. This change develops serious symptoms: the film shrinks and tends to become dry and brittle. The mechanical strains and stresses to which dry and brittle films are subjected during use soon cause a breakdown of perforations. The nature of the photographic emulsion, and likewise, of the base, makes it a receptive medium for accumulating moi.sture, oil, and dirt. The substances of which the emulsion is composed are not highly resistant to abrasion and scratches appear in a short time under normal use. These scratches become receptacles for dirt. The dirtier a scratch, the worse it appears when projected. Therefore, when a film becomes scratched during the first run, which may occur on poor equipment or on good equipment improperly operated, sub.scquent use of the film will make these original scratches more and more apparent. In addition, new scratches will be added constantly, and in a short time, it has acquired the "rainy" appearance which has been a source of much perturbation. By the rejuvenation process, scratches and abrasion marks on both the emulsion and celluloid sides of negatives and positives are removed. Dry, brittle film is re The Ampro Vultagc Regulator has bern designed lo aid projeetioii hhere line v oltaee is toii iuw or too high. Assures 1 13 volt output vhere line voltage varies from mt to 12.5 volts. stored to an elastic condition, and warped film is straightened. The removal of scratches is effected by causing a temporary swelling of the celluloid and emulsion layers, thus bringing together the walls of the scratches. After the swelling is reduced by drying, the walls of the scratches adhere. Elasticity is restored by impregnating the celluloid with material to take the place of the material that has evaporated. Neither distortion of the film nor disturbance of the relative positions of the silver grains results from this treatment. Industrial and educational organizations have found Recono service of great economic value. By restoring their used prints to good screening quality, they saved the co.st of buying new prints and were able to use the savings towards the purchase of new subjects. Films that are stored away for future generations often become unusable becau.se of chemical deterioration. Important films should be inspected periodically — merely keeping a film in a can in the vault does not insure its preservation. K E I. E C T E l» II E K U It T :>!> F O II THE II I S 4 III M 11%' A T I i\' <; B U S I ]% E S S E .\ E 4 I T I \ E COME AND PLAY! HOT SPRINGS .-, NATIONAL PARK, ARKANSAS Rebuild your pep ond restore healtk Outdoor sports ore bracing ond invigorating, and tbe healing wolers ot A7 Government owned ond supervised thermal springs give new lie and hoppiness In Americo's fovorite vacotion land. Hew Low Rates! AT BOTH HOTELS AMERICAN P MAJESTIC HOTEL. APARTMENTS & BATHS RE MtCACHif* MANftGER EASTMAN HOTtl AND BATHS i.K SAEGER. MANAGER ALSO — g EUROPEAN PLAN MSO Rooms (without meals) frcmm AOAV SELECT EITHER ONE OF THESE FINE HOTELS As G guest o( ihe Majestic or the Eastman your visit to Hot Springs is sure lo be o success. Set in private parks, famous for quolify service and food, both hotels operote government-supervised both houses in connection. Come to SEA CUFF INN on NANTUCKET this Summer Superb Stviinnting, Sailing. Golf, Tennis. Fishing, Riding. Cycling and other Spttrts NANTUCKET, quaini old home port of whaling ships and clippers, has a charm all its own. Here vou will find everything you have always hoped to fintl in a vacation spot — and nothing undesirable. 3 good golf courses. Surf and sheltered bathing. Cueklail lounge and eoiicert music. Enjoy a perfect holiday with us — where the air is cool, the water is warm, and the people are friendlv. Th« SEA CLIFF tNN is now under n.-« mnnu(:fnipnl. Many improvements have keen made, inrludinf; 40 gleaming, modern tile balh.s, with tubs and showers. Amcrioan Plan rntefrom S6.00 a day sineto. Sll.OO a duy double. ii|>. Splendid euisine. Rates on collates upon reigueHt. Write (or dcscrlplive folder and rates. Reservations should be made in ad id Lif-Ulhous, nitukft. ^EA CLIFF IXX and Cottages ■IRTHl R JELLIS, I'ret. DEPT. 48 NANTUCKET. MASS. XVIII